59 + Interview Questions in HUMAN HEALTH IN GENERAL AWARENESS Page 2 InterviewSolution

51.	Why does an AIDS patient suffer from many other infectious disease?
Answer» Due to the reduction in number of helper T-cells, the immune system becomes weak. Consequently, the patient suffers from infectious disease.

Discussion

52.	When is a tumour is referred to as Malignant?
Answer» Malignant tumor is a mass of proliferating neoplastic cells, which spread to distant sites through body fluids to develop secondary tumors.

Discussion

53.	How does tobacco smoking cause oxygen deficiency in the body.
Answer» Smoking increases the carbon monoxide content of the blood that refuses.

Discussion

54.	What are oncogenic virus?
Answer» The viruses which cause cancer are called oncogenic virus.

Discussion

55.	A person was injured in a road accident and required an urgent immune response. What should be done?
Answer» Vaccine against Tetanus.

Discussion

56.	You have heard of many incidences of Chickengunya in our country. Name the vector of the disease.
Answer» Aedes mosquitoes.

Discussion

57.	How is a cancerous cell different from a normal cell?
Answer» Normal cells remain adhered to one another. They have a definite life span. As some old cells die, they are replaced by new cells which arise by cell division and differentiation. Cancerous cells:- Whenever there is break down of any regulatory mechanism, a cell develops the ability to undergo uncontrolled repeated division forms a clone at cells. There is no adherence. The cells slip past one another forming a mass of undifferentiated cells called neoplasm or tumour. Tumour results in pressing of surrounding normal cells and tissues causing discomfort and disruption of their functioning.

57.

How is a cancerous cell different from a normal cell?

Answer»

Normal cells remain adhered to one another. They have a definite life span. As some old cells die, they are replaced by new cells which arise by cell division and differentiation. Cancerous cells:- Whenever there is break down of any regulatory mechanism, a cell develops the ability to undergo uncontrolled repeated division forms a clone at cells.

There is no adherence. The cells slip past one another forming a mass of undifferentiated cells called neoplasm or tumour. Tumour results in pressing of surrounding normal cells and tissues causing discomfort and disruption of their functioning.

Discussion

58.

How do normal cells get transformed into cancerous neoplastic cells? Mention the differences between viral oncogenes and cellular oncogenes.

Answer»

The transformation of normal cells into cancerous neoplastic cells is induced by physical, chemical and biological agents collectively called carcinogens; they lose the property of contact inhibition.

Viral Oncogenes	Cellular Oncogenes
These are the genes present in the oncogenic viruses, which effect oncogenic transformation of the cells they infect.	These are the genes present in normal cells and code for growth factors; when activated under certain conditions, can cause oncogenic transformation of the cell.

Discussion

59.	Answer the following with respect to Cancer. (a) How does a cancerous cell differ from a normal cell (b) Benign tumour is less dangerous than malignant tumour. Why (c) Describe causes of cancer. (d) Mention two methods of treatment of the disease.
Answer» (a) In normal cells, growth and differentiation is highly controlled and regulated (contact inhibition). The cancerous cells have lost the property of contact inhibition,hence continue to divide giving rise to masses of cells (tumors). (b) The benign tumor remains confined in the organ affected as it is enclosed in a connective tissue sheath and does not enter themetastatic stage. (c) Cancer may be caused due to carcinogens which are physical(radiations), chemicals (Nicotine, Aflatoxin, Cadmium oxide, Asbestos) and biological (viral oncogens) (d) Surgery, radiothera]py, Chemotherapy

59.

Answer the following with respect to Cancer. (a) How does a cancerous cell differ from a normal cell (b) Benign tumour is less dangerous than malignant tumour. Why (c) Describe causes of cancer. (d) Mention two methods of treatment of the disease.

Answer»

(a) In normal cells, growth and differentiation is highly controlled and regulated (contact inhibition). The cancerous cells have lost the property of contact inhibition,hence continue to divide giving rise to masses of cells (tumors).

(b) The benign tumor remains confined in the organ affected as it is enclosed in a connective tissue sheath and does not enter themetastatic stage.

(c) Cancer may be caused due to carcinogens which are physical(radiations), chemicals (Nicotine, Aflatoxin, Cadmium oxide, Asbestos) and biological (viral oncogens)

(d) Surgery, radiothera]py, Chemotherapy

Discussion

Explore topic-wise InterviewSolutions in .

Why does an AIDS patient suffer from many other infectious disease?

When is a tumour is referred to as Malignant?

How does tobacco smoking cause oxygen deficiency in the body.

What are oncogenic virus?

A person was injured in a road accident and required an urgent immune response. What should be done?

You have heard of many incidences of Chickengunya in our country. Name the vector of the disease.

How is a cancerous cell different from a normal cell?

How do normal cells get transformed into cancerous neoplastic cells? Mention the differences between viral oncogenes and cellular oncogenes.

Answer the following with respect to Cancer. (a) How does a cancerous cell differ from a normal cell (b) Benign tumour is less dangerous than malignant tumour. Why (c) Describe causes of cancer. (d) Mention two methods of treatment of the disease.